Engine-valve.



M. HACKETT.

ENGINE VALVE. APPLlcATmN FxLED1uLY|9.1912.

Patemfed- May L d 'Fg/fj 2,2?

narran strains ramena? sonaron.

- MICHAEL HACKETT, OF GRIMES, IOWIL ENGINE-VALVE.

Grimes, county of Polk, and State of iowa,

have invented a new and useful Improvement in Engine-Valves, of whichthe following is a specification.

The object of my invention is to provide mea-ns, simple, strong, durableand practically inexpensive, in construction, of timing the admission ofgas into the cylinders of a multiple cylinder gasolene motor and alsothe timing of the opening of the exhaust from the cylinders.

My invention consists of certain details of construction hereinafter setforth, pointed eatin my claim, and illustrated in the accompanyingdrawings, in which- Figure I shows a plan view, in section, of one ofthe cylinders and its attachments; Fig. II shows a vertical sectionalview taken on the line 2-2, in Fig. I; Fig. III shows a verticalsectional view taken on the line 3 3, in Fig. H; and Fig. IV is adiagram showing the relative positions of the valves and piston in acylinder and its attachments.

Referring to the accompanying drawings, lindicates a cylinder,11 thepiston head and 12 the connecting rod. On the outer surface of thecylinder are secured two other, and smaller, lcylinders 13 and 14,respectively, the

. latter extending above the main cylinder 10.

'Each of these cylinders is provided with a piston head, 15 and 16respectively, and connecting rods, 17 and 18 respectively. The cylinder14 (the one extending above the cylinder 10) is provided with a port 19which opens into the upper portion of the main cylinder 10 and the saidcylinder 10 is provided with a port 20, in horizontal alinementwith theport 19, which opens into the smaller auxiliary cylinder 1 3. Thecylinder 14 is provided with an intake pipe 21 and the cylinder 13 isprovided with an exhaust 22. The upward extension of cylinder 14, towhich the intake pipe is connected, has its top or upper end closed by aremovable plug, as shown.

rPhe rod 12 is connected with a crank arm 23 on the main crank shaft 24,and the shafts 17 and 18 are connected with their respective crank arms25 and 26, on the auxiliary crank shaft 27 and the two cra'nk shafts areoperated together by the gear Wheels 28 and 29 Speecatioii of LettersPatent.

Patented May 9, 1916.

Iis geared to the main crank shaft which carries the crank arms 'fromthe main cylinder pistons, it is obvious'that the admission of gas andthe exhaust is uniformly timed. As the spark is also timed in theordinary manner, it is obvious a double timing is thus obtained.

Having thus described my invention what I claim and desire to secure byLetters Patent of the United States is:

A gas engine comprising a main cylinder, and a tangential pair ofauxiliary cylinders arranged adjacent each other and constituting intakeand exhaust valve casings, an uninterrupted Water jacket surrounding thecylinders and extending over the main and exhaust auxiliary cylinder,the Aintake auxiliary cylinder extending through and above the waterjacket and having its upper end opened, a closure plug removably securedin the opened upper end of the intake cylinder, an intake pipe connectedlaterally to extension of the intake cylinder above the water jacket, anoutlet pipe connected to the other auxiliary cylinder and extendingthrough the water jacket, the intake and exhaust cylinderscommunicating-with the main cylinder through ports arranged in a commonplane above the outlet pipe and below the intake pipe, a piston'in themain cylinder, valve pistons in the auxiliary cylinders, a main driveshaft connected to the main piston, a single crank shaft having spacedcrank portions connected to the valve pistous, and intermeshing gearsconnecting the shafts.

MICHAEL HACKETT.

`Witnesses:

FRANK STEINnn,

1 ZELL G. Ron.

: l. rara

